CAPTCHA & Bot Protection
91,344 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA (9.1%). Google's CAPTCHA/bot-scoring widget, the most widely deployed CAPTCHA by far. Detection is homepage-level HTML/header fingerprinting, so a site can run reCAPTCHA on other pages without it showing here.
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | snapchat.com | #123 (Tranco) | Find emails |
| 2 | apache.org | #125 (Tranco) | Find emails |
| 3 | one.one | #160 (Tranco) | Find emails |
| 4 | w3.org |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| telepoint.bg | #83,672 | Bootstrap, DigiCert, Font Awesome + 9 more | Find emails |
| hiday.co.jp | #83,673 | Apache, Font Awesome, Google Analytics + 7 more | Find emails |
| evalar.ru | #83,675 | Bitrix, DDoS-Guard, Diginetica + 6 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| gruposdotelegram.com.br |
| #83,732 |
| Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 4 more |
| Find emails |
| tekkietown.co.za | #83,745 | Cloudflare edge/CDN, Klaviyo, Let's Encrypt + 5 more | Find emails |
| slashed.cloud | #83,756 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 3 more | Find emails |
| ncic.com | #83,760 | Google Analytics, Google Fonts, Google Hosted Libraries + 7 more | Find emails |
| circlehealthgroup.co.uk | #83,770 | ASP.NET, Civic Cookie Control, Cloudflare Bot Management + 10 more | Find emails |
| rtl-sdr.com | #83,784 | CleanTalk, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| 4dpredict.app | #83,799 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| pandascore.co | #83,818 | AWS Lambda, Chargebee, Cloudflare edge/CDN + 14 more | Find emails |
| tupperware.com.br | #83,819 | Cloudflare edge/CDN, Fancybox, Google Cloud DNS + 4 more | Find emails |
| t3kys.com | #83,822 | Cloudflare, DigiCert, Django + 7 more | Find emails |
| blebox.eu | #83,827 | AOS, Bootstrap, Font Awesome + 14 more | Find emails |
| trinket.io | #83,828 | Amazon CloudFront, Amazon S3, AngularJS + 23 more | Find emails |
| arabsexi.info | #83,834 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 6 more | Find emails |
| vreme.com | #83,836 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 15 more | Find emails |
| amgreatness.com | #83,844 | Amazon Route 53, Google Tag Manager, Let's Encrypt + 5 more | Find emails |
| templehealth.org | #83,866 | Adobe Experience Cloud (Launch), Amazon CloudFront, Cloudflare + 12 more | Find emails |
| paulmarius.fr | #83,881 | Amazon (ACM), Amazon CloudFront, Bootstrap + 9 more | Find emails |
| richmondlp.com | #83,892 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 8 more | Find emails |
| agronews.gr | #83,897 | ASP.NET, AddThis, Google Analytics + 7 more | Find emails |
| viacomcbs.digital | #83,905 | AOS, Bootstrap, DigiCert + 7 more | Find emails |
| siliconweb.com | #83,937 | Amazon Route 53, Bootstrap, Google Fonts + 7 more | Find emails |
| emma-sleep.in | #83,944 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 7 more | Find emails |
Showing the first 10,000matches — add a filter to narrow.
From the Crawlora Website Tech Stack Dataset, a homepage-level fingerprint of a 1,000,000-domain Tranco top-1M census (run top1m-2026-08-25-full-v2), snapshot August 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →